发明名称 |
Security marking authentication device |
摘要 |
<p>The invention discloses an authentication device for the visual authentication of a document or item comprising a circular polarizing security marking, said device comprising a light source and polarization filters for the either parallel or alternate illumination of said marking on said document with left- and right -circular polarized light. Corresponding methods for the visual and the automated authentication of the marking are disclosed as well.</p> |
申请公布号 |
AU2007359885(B2) |
申请公布日期 |
2012.12.13 |
申请号 |
AU20070359885 |
申请日期 |
2007.10.09 |
申请人 |
SICPA HOLDING SA |
发明人 |
DECOUX, ERIC;CALLEGARI, ANDREA |
分类号 |
G07D7/00;G07D7/12 |
主分类号 |
G07D7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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